Absorbing and purifying composition



Patented May 15, 1923.

JOHN G. TATE, OF OAKLAND, CALIFORNIA.

ABSORBING AND PURIFYING COMPOSITION.

No Drawing.

To all whom it may concern:

Be it known that I, JOHN C. TATE, a citizen of the United States, and aresident of the city of Oakland, county of Alameda, State of California,have made a new and useful inventioni-to wit, Improvements in Absorbinand Purifying Compositions; and I do Tiereby declare the following to bea full, clear, concise, and exact description of the same.

The present invention relates to a modification of the absorbing andpurifyin composition described in my Letters 1 granted July 13, 1920,under No. 1,346,349, having the object of reducing the proportions andquantities and the combinations of the ingredients forming thecomposition.

This invention relates particularly-to an absorbent composition orsubstance, consisting of either, the combination of mineral andvegetable matter, or a mineral substance and a binder, or a vegetablesubstanceand a binder, or any one of the substances alone, which willabsorb, Wholly or in part, the toxic parts of vitiated air or theinjurious and objectionable gaseous products resulting from thecombustion of hydrocarbon oils or gases.

A further object of the invention is to provide a composition capable ofretaining, absorbing and neutralizing moisture, gases and thedisagreeable and injurious odors resulting from the combustion of animaland vegetable matter, permitting the combustion of such matter inheating devices within restricted areas so as to not require outlets,flues or ventilation, usually necessary to the conventional type of gasor oil heater for carrying off the waste products of combustion. Otherobjects and advantages will ap ear as this description progresses.

n this specification, the invention is described in the form consideredto be the best, but it is to be understood that the invention is notlimited to such form, because it may be embodied in other forms; and itis also to be understood that in and by the claims following thedescription, it is desired to cover the invention in whatsoever form itma be embodied. I

'I he burning and combustion of hydrocarbon gases for heating andlighting, p'articularly the coal or water gas used in homes forilluminating and heating purposes,

leaves residuum exhaust gases which contain objectionable by-products'unhealthful for Application filed April 6, 1922.

atent,

Serial No. 550,205.

human inhalation and odors, create moisture and tend to deface orattackmetallic and painted surfaces and organic materials.

My invention contemplates an absorbent composition adapted to becontained within a suitable closure and to have the noxious exhaustgases (resulting from the combustion of hydrocarbons) to be passedthrough and in contact with said composition. Carbon dioxid, sulfurgases, water vapor and .the like, contained in the said exhaust gases,will thereby be absorbed or neutralized, such action resulting in thecreation and liberation of oxygen and the regeneration and purificationof said exhaust gases into clean and wholesome air. In the practicaloperation of my invention, a heater or stove, utilizing hydrocarbongases for combustion purposes, would have a container mounted thereonand filled with lumps or particles of my absorbent composition. Theexhaust gases from said burner would be passed through the container,into and with contact with the absorbent composition and then dischargedinto the air to be heated. I have found by directing the course of theheated produce disagreeable gases through the absorbent compositionprior to releasing it into the atmosphere,

that the greater part of the toxic constituents of the exhaust gases areabsorbed or neutralized, .so that the heated air is released free of allnoxious gaseous products and made fit for breathing purposes. Theregeneration or purification of the heated gases in this mannereliminates the necessity of air vents to the said stove and makes itpossible to do with gas heaters what has been commonly done with otherheating appliances that do not generate objectionable gaseous products.The porous nature of the absorbent composition is such that it holds orretains the waste gaseous products, and repeated experiments have shownthat the absorbent composition is materially heavier separately or mixedwith a mineral binder and filler such as burned gypsum. A small quantityof clay or kaolin may be mixed directly with lime or included as anadditional element in combination with the lime and burned gypsum.Likewise, the mineral lime might be mixed directly with either woodcharcoal or with the dried corncobs. Similarly, the vegetable absorbent,such as charcoal or the corncobs, might be mixed directly either withthe mineral binder and filler, such as burned gypsum, or with clay orkaolin, in lieu thereof. The elements would be mixed in the. followingproportions, although it is to be understood that variations in thequantities of said elements clearly come within the purview of thisinvention: lime, fourteen (14) toeighteen (18) parts; charcoal, one-hall(t) to two (2) parts; burned gypsum, six (6) to ten (10) parts; andkaolin, two (2) to six (6} parts. ,The said approximate proportionswould be adbored to when the ingredients would be. used eitherseparately or mixed in any of the combinations previously set iorth.

The elements or ingredients would be preferably mixed in a dry powderedcondi-- tion, to which water in suitable quantity would be added to forma workable semisolid mass. The mass would then be shaped or divided intounits of any predetermined size and suitably dried. After being dried,the units are hard and porous. The lime of the composition, which "formsthe greatest part thereof, acts as a retainer or absorber of water vaporand of the carbon dioxid and sulfur gases. The. kaolin or clay acts in asimilar manner and incidentally may beso treated as to act as adeodorant. The burned fi'ypsum when used acts as a hinder or filler orholding all of the. elements together and,

' furthermore, is porous and actsas a mechanical absorbent. Thevegetable charcoal or corncob is likewise very dry and porous in bodyand it also serves as an absorbent gaseous products of combustioncomprising 7 a vegetable material and a binder capable of absorbing andretaining moisture, gases and the disagreeable odors resulting from thecombustion of animal and vegetable matter.

2. A composition for purifying waste gaseous products of combustioncomprising charcoal and a binder capable of absorbing and retaining,moisture, gases and the disagreeable odors resulting from the combustionof animal and vegetable matter.

3. A composition for purifying waste gaseous products of combustioncomprising a hard porous mass consisting of a mixture of charcoal andburned gypsum capable oi? absorbing and retaining moisture, gases andthe disagreeable odors resulting from the combustion of animal andvegetable matter.

4. A composition for purifying the waste aseous products of combustioncomprising rom one-half (g) to two (2) parts by weight of wood charcoaland six (6) to ten- (10) parts by weight of burned gypsum capable ofabsorbing and retaining moisture, gases and the disagreeable odorsresulting from the combustion of animal and vegetable matter.

In testimony whereof, l have hereunto set my hand at San Francisco,California, this 28th day of March, 1922.,

JGHN (l. TATE. In presence of LINCOLN V. Jonusou.

